2025-26 Seminar Schedule

Monday 3:30pm, Hill 705

Spring 2026 Seminar Schedule

• Jan 26th, John Krueger, UNT

• Feb 16th, Monroe Eskew, TUWien

• Mar 2nd, Michal Szachniewicz, IAS

• Apr 27th, Felix Weilacher, Berkeley

Fall 2025 Seminar Schedule

• Sept 8th, Tom Benhamou, Rutgers
Time: 4:30pm
Cardinal Characteristics at Large Cardinals

• Sept 15th, Moti Gitik, Tel-Aviv University
Time: 4:30pm
On some PCF configurations

• Sept 22nd, Cecelia Higgins, Rutgers
Measurable Brooks's Theorem for Directed Graphs

• Sept 29th, Tom Benhamou, Rutgers
On the cofinality of ultrafilters

• Oct 6th, NO SEMINAR

• Oct 13th, Riley Thornton, CMU
Factor of iid coloring random maps

• Oct 20th, Patrick Lutz, University of Michigan
On a question of Day and Marks on a question of Slaman and Steel (sic)

• Oct 27th, Petr Naryshkin, IAS
U-amenability, treeability, and Borel hyperfiniteness

• Nov 3rd, NO SEMINAR

• Nov 10th, Margaret Thomas, Purdue
O-minimality and definable topologies

• Nov 17th, NO SEMINAR

• Nov 24th, NO SEMINAR

• Dec 1st, NO SEMINAR

• Dec 8th, Sebastiano Thei, IMPAN
Time: 4:30pm
Constructible inner models in Prikry-type extensions

Spring 2025 Seminar Schedule

• Jan 27th, Derek Levinson, UNT
PFA and Derived Models

• Feb 3rd, William Chan, TU Wien
  Basis for Uncountable Linear Orders

• Feb 10th, Luke Serafin, Cornell
Choice and Equitable Social Welfare

• Feb 17th, NO SEMINAR

• Feb 24th, Olga Kharlampovich, CUNY
First-order sentences in random groups

• Mar 3rd, Tom Benhamou, Rutgers
A Hechler-like theorem for ultrafilters

• Mar 10th, Ben-zion Weltsch, Rutgers
Galvin's Failure on Supercompactness Measures

• Mar 17th, NO SEMINAR

• Mar 24th, Matthew Harrison-Trainor, UIC
Gaps in Scott spectra of theories

• Mar 31st, Aaron Anderson, U Penn
Examples of Distal Metric Structures

• April 7th, Tan Ozalp, Notre Dame
Initial Tukey Structure Below a Stable Ordered-Union Ultrafilter

• April 21st, Omer Ben-Neria, Hebrew University
Careful Iterations

• April 28th, James Cummings, CMU
The tree property at predecessors of singular cardinals

• May 5th, Alejandro Poveda, Harvard
Recent progress on the study of HOD

Fall 2024 Seminar Schedule

• Sept 9th, Corey Switzer, KGRC
Weak and Strong Variants of Baumgartner's Axiom for Polish Spaces

• Sept 16th, Maxwell Levine, University of Freiburg
Namba Forcing, Minimality, and Approximations

• Sept 23th, Russell Miller, CUNY
Countable reductions in computable structure theory

• Sept 30th, Su Gao, University of North Texas
Extremely amenable automorphism groups of countable structures

• Oct 7th, James Walsh, NYU
A theory satisfying a strong version of Tennenbaum's theorem

• Oct 14th, Slawomir Solecki, Cornell
From set theory to combinatorics of simplicial maps

• Oct 21st, Jason Block, CUNY
Elementarity of Subgroups and Complexity of Theories for Profinite Groups

• Oct 28th, Danielle Ullrich, Maryland
Borel Complexity of some Weakly Minimal Theories

• Nov 4th, No Seminar

• Nov 7th, Assaf Shani, Concordia University
Location and Time: Hill 423, 2 pm
Generic dichotomies for Borel homomorphisms for the finite Friedman-Stanley jumps

• Nov 11th, Frank Wagner, Ohio State
Malnormal Subgroups of Finitely Presented Groups

• Nov 18th, Brent Cody, VCU
Two-cardinal derived topologies

• Nov 25th, Koichi Oyakawa, Vanderbilt
Hyperfiniteness of boundary actions of acylindrically hyperbolic groups

• Dec 2nd, No Seminar

• Dec 9th, Victoria Gitman, CUNY
Upward Lowenheim-Skolem numbers for abstract logics

Spring 2024 Schedule

• Jan 22nd, Will Boney, Texas State
Building generalized indiscernibles in nonelementary classes with set theory

• Jan 29th, Jenna Zomback, Maryland
Boundary actions of free semigroups

• Feb 5th, Filippo Calderoni, Rutgers
The L-space conjecture and descriptive set theory

• Feb 12th, Gunter Fuchs, CUNY
Blurry HOD: a hierarchy of inner models

• Feb 19th, Artem Chernikov, Maryland
Intersecting sets in probability spaces and Shelah's classification

• Feb 26th, No seminar

• Mar 4th, Sean Cox, Virginia Commonwealth
Sparse systems, CH, and Denjoy-Carleman classes

• Mar 11th, No seminar

• Mar 18th, Fanxin Wu, Rutgers
Diamond on Omega

• Mar 25th, Arthur Apter, CUNY
A Choiceless Answer to a Question of Woodin

• April 1st, No seminar

• April 8th, Jing Zhang, Toronto. Special time: 4pm.
Squares, ultrafilters and forcing axioms

• April 15th, Mark Poor, Cornell
Shelah groups in ZFC

• April 22nd, Dave Marker, University of Illinois at Chicago
Rigid real closed fields

• April 29th, Gabe Goldberg, Berkeley
Generalizations of the Ultrapower Axiom

Fall 2023 Seminar Schedule

• Sept 11th, Tom Benhamou, Rutgers
The Tukey order on ultrafilters, the Galvin property, and the Ultrapower Axiom

• Sept 18th, Alex Kruckman, Wesleyan
The complexity of ages admitting a universal limit structure

• Sept 25th, Dima Sinapova, Rutgers
Mutual stationarity and the failure of SCH

• Oct 2nd, Philip Stetson, Rutgers
Characterizing LEF groups

• Oct 9, No Seminar

• Oct 16, Justin Moore, Cornell
Large minimal non-σ-scattered linear orders

• Oct 23rd, Forte Shinko, Berkeley
Equivalence relations classifiable by actions of Polish abelian groups

• Oct 30th, Filippo Calderoni, Rutgers
Condensation and solvable left-orderable groups

• Nov 6th, No seminar

• Nov 13th, Paul Ellis, Rutgers
Finite Tukey Morphisms

• Nov 20th, Alexei Miasnikov, Stevens Institute of Technology
First-order classification, non-standard models, and interpretations

• Nov 27th, No seminar

• Dec 4th, Joel Hamkins, Notre Dame
The computable model theory of forcing

• Dec 11th, Eyal Kaplan, Berkeley
Preserving the Ultrapower Axiom in forcing extensions

Dinner follows

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